package com.mapper;

import com.domain.BlogArticle;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface BlogArticleMapper {
    @Select("SELECT * FROM t_article WHERE id=#{id}")
    public BlogArticle selectArticleWithId(Integer id);

    @Insert("INSERT INTO t_article (title,created,modified,tags,categories," +
            " allow_comment, thumbnail, content)" +
            " VALUES (#{title},#{created}, #{modified}, #{tags}, #{categories}," +
            " #{allowComment}, #{thumbnail}, #{content})")
    @Options(useGeneratedKeys=true, keyProperty="id", keyColumn="id")
    public Integer publishArticle(BlogArticle article);

    @Select("SELECT * FROM t_article ORDER BY id DESC")
    public List<BlogArticle> selectArticleWithPage();

    @Delete("DELETE FROM t_article WHERE id=#{id}")
    public void deleteArticleWithId(int id);

    @Select("SELECT COUNT(1) FROM t_article")
    public Integer countArticle();

//    @Update("UPDATE t_article SET title=#{title},created=#{created},modified=#{modified},tags = #{tags}, thumbnail = #{thumbnail}, content = #{content}," +
//            " categories = #{categories}, hits = #{hits},comments_num = #{commentsNum}, allow_comment = #{allowComment} WHERE id=#{id}")
//    public Integer updateArticleWithId(BlogArticle article);

    @Update({
            "<script>",
            "UPDATE t_article",
            "<set>",
            "<if test='title != null'>title = #{title},</if>",
            "<if test='content != null'>content =#{content},</if>",
            "<if test='created != null'>created =#{created},</if>",

            "<if test='categories != null'>categories = #{categories},</if>",
            "<if test='tags != null'>tags  = #{tags},</if>",
            "<if test='allowComment != null'>allowComment = #{allowComment},</if>",
            "<if test='thumbnall != null'>thumbnall = #{thumbnall},</if>",
            "modified = CURRENT_TIMESTAMP," +
            "</set>",
            "WHERE id = #{id}",
            "</script>"
    })
    public Integer updateArticleWithId(BlogArticle article);
}
